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Bugfix/macos sequoia 15.5 compillation fix #140

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97a6efb
Added MacOS Build logic to `build.sh`
Lanot Nov 11, 2025
dca76cb
Fixed MacOS 15.5 Compilation issue: `error: expected unqualified-id: …
Lanot Nov 11, 2025
e94c864
Fix for Unreal/Unity using x86_64/arm64 (Rosetta) on Apple Silicon ha…
Lanot Nov 14, 2025
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4 changes: 4 additions & 0 deletions Unreal/Plugins/AirSim/Source/AirSim.Build.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -83,6 +83,10 @@ public AirSim(ReadOnlyTargetRules Target) : base(Target)
PublicDependencyModuleNames.AddRange(new string[] { "Core", "CoreUObject", "Engine", "InputCore", "ImageWrapper", "RenderCore", "RHI", "PhysicsCore", "AssetRegistry", "ChaosVehicles", "Landscape", "CinematicCamera" });
PrivateDependencyModuleNames.AddRange(new string[] { "UMG", "Slate", "SlateCore", "RenderCore" });

if (Target.Platform == UnrealTargetPlatform.Mac) {
PublicDefinitions.Add("MSGPACK_DISABLE_LEGACY_NIL=1");
}

//suppress VC++ proprietary warnings
PublicDefinitions.Add("_SCL_SECURE_NO_WARNINGS=1");
PublicDefinitions.Add("_CRT_SECURE_NO_WARNINGS=1");
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25 changes: 24 additions & 1 deletion build.sh
100644 → 100755
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Expand Up @@ -8,13 +8,35 @@ build_dir=build
mkdir -p build
cd build

CC=/usr/bin/clang-18 CXX=/usr/bin/clang++-18 cmake ../cmake -DCMAKE_CXX_FLAGS='-stdlib=libc++ -I/usr/lib/llvm-17/include/c++/v1~'
# Check if we are on Mac using the DARWIN environment variable
if [[ "$(uname)" == "Darwin" ]]; then

# Fix for Unreal/Unity using x86_64/arm64 (Rosetta) on Apple Silicon hardware.
CMAKE_VARS=
if [[ "$(uname -a)" == *"arm64"* ]]; then
echo "Building for MacOS (arm64)"
CMAKE_VARS="-DCMAKE_APPLE_SILICON_PROCESSOR=arm64 -DCMAKE_POLICY_VERSION_MINIMUM=3.10"
else
echo "Building for MacOS (x86_64)"
CMAKE_VARS="-DCMAKE_APPLE_SILICON_PROCESSOR=x86_64 -DCMAKE_POLICY_VERSION_MINIMUM=3.10"
fi

# llvm@21 gives errors on build
export CC="$(brew --prefix)/opt/llvm@18/bin/clang"
export CXX="$(brew --prefix)/opt/llvm@18/bin/clang++"
cmake ../cmake -DCMAKE_BUILD_TYPE=Release $CMAKE_VARS
#CC=/usr/bin/clang CXX=/usr/bin/clang++ cmake ../cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_APPLE_SILICON_PROCESSOR=arm64
else
echo "Building for Linux"
CC=/usr/bin/clang-18 CXX=/usr/bin/clang++-18 cmake ../cmake -DCMAKE_CXX_FLAGS='-stdlib=libc++ -I/usr/lib/llvm-17/include/c++/v1~'
fi

make -j$(nproc)

cd ..

mkdir -p AirLib/lib/x64/$folder_name
mkdir -p AirLib/lib/arm64/$folder_name
mkdir -p AirLib/deps/rpclib/lib
mkdir -p AirLib/deps/MavLinkCom/lib
cp $build_dir/output/lib/libAirLib.a AirLib/lib
Expand All @@ -23,6 +45,7 @@ cp $build_dir/output/lib/librpc.a AirLib/deps/rpclib/lib/librpc.a

# Update AirLib/lib, AirLib/deps, Plugins folders with new binaries
rsync -a --delete build/output/lib/ AirLib/lib/x64/$folder_name
rsync -a --delete build/output/lib/ AirLib/lib/arm64/$folder_name
rsync -a --delete external/rpclib/$RPC_VERSION_FOLDER/include AirLib/deps/rpclib
rsync -a --delete MavLinkCom/include AirLib/deps/MavLinkCom
rsync -a --delete AirLib Unreal/Plugins/AirSim/Source
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